Spirit Airlines Spirit Airlines is a major American ultra-low-cost carrier. The headquarter of Spirit Airlines is in Miramar, Florida. Spirit Airlines started its operations in 1990. Since then, they are offering tremendous services to the people. The fleet size of Spirit Airlines is 180 & it travels to more than 83 destinations. If you are looking for cheap & best flight options. Then, Spirit Airlines is the best option for you. Call us at +1-866-579-8033 for Spirit Airlines manage booking & flight booking services. American Airlines American Airlines is a major USA-based airline headquartered in Fort Worth, Texas. This is one of the oldest airlines in the world. American Airlines plays a bigger role in the terms of providing employment opportunities in the USA. It travels to more than 350 destinations, including Australia, Canada & China.